Yamaha YFM250XL(C) Service Manual page 224

6
FINAL DRIVE GEAR AND DRIVE SHAFT
6 - 38
4.Attach:
Gear lash measurement tool 1
Dial gauge 2
Gear lash measurement tool:
P/N. YM-01231, 90890-01231
Dial gauge:
P/N. YU-03097, 90890-03097
a Measuring point
5.Measure:
Gear lash
Gently rotate the gear coupling from
engagement to engagement.
If the measured value in step 5 is different
than that of the calculated value for shim
size on page 6-32, repeat the following
steps using the measured value in step 5.
Final gear gear lash:
0.1 ~ 0.2 mm (0.004 ~ 0.008 in)
NOTE:
Measure the gear lash at 4 positions rotate
the shaft 90˚ each time.
Final gear lash adjustment
1.Remove:
8 mm bolts (bearing housing)
10 mm bolts (bearing housing)
Refer to the "FINAL DRIVE GEAR AND
DRIVE SHAFT – DISASSEMBLY" section.
2.Remove:
Bearing housing 1
Shim(s) 2
Ring gear 3
Thrust washer 4
Refer to the "FINAL DRIVE GEAR AND
DRIVE SHAFT–DISASSEMBLY" section.
DRIV